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Service bulletins for the 2012 Chevrolet Express

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

1796 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

By topic

Only bulletins with component: Electrical system are shown. Show all

Bulletins, newest first
PIT52892024-01-08. Service bulletin. ELECTRICAL SYSTEM. Service Charging System Message Or Low Volt Gauge Reading After Cold Start
158012024-01-08. Service bulletin. ELECTRICAL SYSTEM. Emergency Vehicle Reduced Power
PIT5125A2023-12-26. Service bulletin. UNKNOWN OR OTHER; ELECTRICAL SYSTEM:INTERIOR LAMPS/BULBS. Available Stop And Turn Lamp Options/Diagnostic Information
PIT5074H2023-12-26. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. J-35616-64B Terminal Test Probe / Replacement Terminal / Terminated Lead.
14105B2023-12-18. Service bulletin. SEAT BELTS:FRONT:RETRACTOR; UNKNOWN OR OTHER; AIR BAGS:FRONTAL; TIRES; ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. Passenger Side Instrument Panel Performance
14105A2023-12-18. Service bulletin. TIRES; SEAT BELTS:FRONT:RETRACTOR; AIR BAGS:FRONTAL; ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; UNKNOWN OR OTHER. Passenger Side Instrument Panel Performance
141052023-12-18. Service bulletin. AIR BAGS:FRONTAL; TIRES; SEAT BELTS:FRONT:RETRACTOR; ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; UNKNOWN OR OTHER. Passenger Side Instrument Panel Performance
14082C2023-12-18. Service bulletin. UNKNOWN OR OTHER; ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. Passenger Side Instrument Panel Performance
14082B2023-12-18. Service bulletin. UNKNOWN OR OTHER; ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. Passenger Side Instrument Panel Performance
14082A2023-12-18. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; UNKNOWN OR OTHER. Passenger Side Instrument Panel Performance
140822023-12-18. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; UNKNOWN OR OTHER. Passenger Side Instrument Panel Performance
147302023-12-18. Service bulletin. UNKNOWN OR OTHER; POWER TRAIN:AUTOMATIC TRANSMISSION:TORQUE CONVERTER; ELECTRICAL SYSTEM:STARTER ASSEMBLY:SOLENOID; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE:SOFTWARE. Torque Converter Clutch Wear
145152023-12-18. Service bulletin. ELECTRICAL SYSTEM. Chassis Electronic Control Module Internal Contamination
20-NA-1322023-12-15. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT; ELECTRICAL SYSTEM. This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.
PIT5074H2023-12-11. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY; ELECTRICAL SYSTEM. J-35616-64B Terminal Test Probe / Replacement Terminal / Terminated Lead.
PIC5687C2023-12-11. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. Checking Smartphone Bluetooth Software Update Status
1300890082023-12-11. Service bulletin. ELECTRICAL SYSTEM:WIRING. GM Wiring Repair Strategy Information
1300890032023-12-11. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. Vehicle Software Enhancements
15NA0132023-12-11. Service bulletin. EXTERIOR LIGHTING; ELECTRICAL SYSTEM. Exterior Lighting Inoperative - Incorrect Upfitter BCM Connections
1406040052023-12-11. Service bulletin. UNKNOWN OR OTHER; EQUIPMENT; ELECTRICAL SYSTEM; FUEL SYSTEM, GASOLINE; FUEL SYSTEM, DIESEL. Duramax® Diesel Glow Plugs Difficult to Install Due to Carbon Buildup - New Glow Plug Bore Reamer Available
PIT5236B2023-12-04. Service bulletin. ELECTRICAL SYSTEM. OnStar Module Does Not Support All B101D Symptom Codes.
120601007A2023-12-04. Service bulletin. ELECTRICAL SYSTEM:PROPULSION SYSTEM; ENGINE; UNKNOWN OR OTHER. New Service Cam Bearings For Gen IV V8 Engines
120089002A2023-12-04. Service bulletin. ELECTRICAL SYSTEM:IGNITION:ANTI-THEFT:IMMOBILIZER/PROXIMITY:KEY/SENDER; EQUIPMENT. Requesting a New Key Code for Customer with Lost or Stolen Keys
07-08-49-020R2023-10-18. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT; ELECTRICAL SYSTEM:INSTRUMENT PANEL:SPEEDOMETER/ODOMETER. This informational bulletin provides information for the IPC odometer programming method quick reference guide.
16-NA-2222023-09-08. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. This bulletin provides information on Engine Concerns that could result from lack of scheduled maintenance, improper service or aftermarket calibrations.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.